Keoke, I don't believe that will be necessary. Take a good look at the way the upper half is attached. It looks to me like the rivets come in from the front edge of the vent frame, then are upset in the channel, therefor it should be something that can be done with the vent in place. Please, please don't tell me I am wrong /ubbthreads/images/graemlins/cryin.gif It looks like enough work as I now see it! (Tell me anyway, I can take it). Oh, that's Guinn with a 'G'. Everyone gets it wrong. Just don't call me Gwen! /ubbthreads/images/graemlins/smirk.gif